I am in the first month of taking my Watson Low-Ogestrel Birth Control Pills (I am a first day of period starter). I began the pills on 23 July 2010. I missed my pill on Monday 25 July 2010, did not take two on the 26th. I then missed my pills on 30 and 31 July. I only continued taking taking the pills as normal (meaning one a day). I did not double up on 1 or 2 August. I took my pill as normal on 3 August (one pill). When looking at my pill pack I have three pills that are left. One in week 1 (Wed) and two in week 2 (Fri & Sat).
I am concerned because my fiancee and I had quite a bit of unprotected sex, with him ejaculating inside of me within the dates of 29 Jul to 2 August. We did not use back-up protection.
Also I began to bleed on Monday 2 August with the bleeding ending on Wed 4 August.
I am trying to figure out the probability of my becoming pregnant. I greatly appreciate any help that you could give me!