Just going into our 4th month TTC. Been using OPK's for 2 months but no success as yet. This month were trying OPK'S and preseed...I estimate I will get my peak LH surge Tues/Weds of next week...! Has anyone got any help, advice they can offer...never used pre seed before and I'm also not so great with the whole when the 'best' time to BD is X