I had sex yesterday my so and I haven't really been doing it cause I caught a stupid cold so it just happened yesterday. I don't know how long my cycles are but all I know is my period was on Feb 23rd till the 27 and again on March 27-31. I've been trying for 13 months now and I just want to know what are the chances it sucks cause I'm irregular so I have no clue when I ovulated. Thank u