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

### input:
I had unprotected sex on the third of December which is when Im supposed to ovulate but i have really irregular periods. October i had no period November i started the 3th stopped the 7th and started the 22nd of November, Ive been off the pill for three months now

### output:

Hello, thnx for trusting Chat Doctor doctors for your health related queries.I guess your concern is-how to determine pregnancy???usually after having protected sex if women gets pregnant her next month menses oil be missed.this is normal protocol...but in your case u have irregular periods....so you are getting confused, periods delayed CZ of pregnant or CZ of your already existing irregular periods....don't worry every problem has a solution,,,u can try out my suggestions:-1.do urinary pregnancy test now itself...this test kits AR available at your nearby medical stores at affordable prices...buy it, do it ourself...if negative then you are not pregnant....if positive then your pregnant...visit a nearby gynecologist for further help.2.I insist u visit gynecologist even if urine pregnancy test is negative...CZ u said u have irregular periods' problem,so usually they ask to get scan(USG of abdomen n pelvis)to know the cause of your irregular periods...n one more advantage of scan is - it tells whether a growing fetus/baby is there or not inside womb of women....u can freely discuss about your unprotected sex thing during visit, so u will have double advantage.(this is not required if u already know WTA causing irregular periods n u already taking treatment for it)3.always use condoms.....4.if forgot to use condoms or condoms rupture,take I pill...but don't make it a habit....I hope this info was informative enough, useful n helpful for your query.regards: Chat Doctor. .(first of all this unprotected sex keeps bugging in mind among couples...besides this u have irregular periods issue,,,that has doubled your confusion,,,I can understand your psychology....but don't take tension...all women goes through this stage.)