### instruction:
If you are a doctor, please answer the medical questions based on the patient's description.

### input:
February 19th was my last normal period. then i moved in with my boyfriend on February 27th. we had sex all from that day until about March 4th, he got off in me and i had an orgasm quit a few times as well as him getting off in me. Then i started bleeding about March 7th and it only lasted about 2 or 3 days. and it was nothing like my normal periods at all. my periods are normally about 6 or 7 days. it was really dark at first and light. then lasted 20 minutes, then the next morning it started back up again and it was dark still but with some pinkish red in it, and then it had a little more blood but not a lot to fill a pad. but i wasn t suppose to start my period until around March 19th which i didn t never start that.On march 11th something bad happened and i was under a lot of stress. But i had already ovulated around the time i was suppose to which was march2nd-march7th. then i thought since i was bleeding beginning of march that i would start around the beginning of April but i haven t started yet. i took a pregnancy test like 2 weeks ago but it said negative. =(. but i still just feel like i could be pregnant. and plus no period still. so ill wait until next week and if no period still then I m going to the hospital to find out why I m not starting my period if I m not pregnant. but i hope they will tell me that I m pregnant. we re really hoping I m pregnant. but if not then we re TTC ASAP and going to keep trying. But i know that stress can cause your period to be late, but people have told me its only caused to be late from stress if also the women ovulated late. because i read that when a women ovulates late then period will be late because there s no menstrual cycle to pass through. but that it the women had already ovulated and then got stress then only stress its self can t make woman s period late if they have already ovulated. So does anyone think I could be pregnant? please give me advise. and me and my boyfriend are hoping I m pregnant.

### output:

HI, Thanks for the query. I understand your concern.  You have very sleek chance of conception. Because of the sex on 4th of March. & sperms can be active up to 3 days after ejaculation.  The bleeding you had on 7th was probably ovulation bleeding.  In that case pregnancy test should be positive by end of March (with home pregnancy test. ) / by 3rd week of march by blood pregnancy Chat Doctor test.  You should go for the test at proper time for exact results.  Absent +ve test would signal at some problem with menses cycle, ( in case it remains irregular for a couple of months) it needs to be treated under Gynecologists guidance.  Thanks.  Thanks.