My boyfriend and I have been try to get pregnant. I have had bad headaches lower cramping and back pains been really tired don't wnt to wake up in the morning feel gassy sounds weird. I've gained some weight and want to no what this is my period is to start next week and I have 24 days between periods can someone please help me

You normally would not be gaining weight at this stage of a pregnancy. It could be that you are experiencing PMS which can often be very similar to early pregnancy symptoms.

Wait and see what happens when your period is due. Give it several extra days to show if it is not on time as periods can be off now and then. If still no period about a week after it was due, try a pregnancy test.